I have a backup generator powered by an 11 HP Briggs & Stratton L head engine (model # 252411) that is very loud. It has an original equipment perforated steel pot type muffler with 1” NPT connections. Does anyone have a suggestion for shutting this thing up so the neighbors and I can get some sleep when the power goes off in the middle of the night (3 times in the last 2 weeks)?
Hugo
Hugo